<template>
  <transition name="slide-right">
    <div class="content">
      <div class="content-wrapper" v-if="bookAvailable">
        <div
          class="content-item"
          v-for="(item, index) in navigation.toc"
          :key="index"
          @click="jumpTo(item.href)"
        >
          <span class="text">{{item.label}}</span>
        </div>
      </div>
      <div class="empty" v-else>加载中...</div>
    </div>
  </transition>
</template>
<script>
export default {
  props: {
    ifShowContent: Boolean,
    navigation: Object,
    bookAvailable: Boolean
  },
  methods: {
    jumpTo(target) {
      this.$emit("jumpTo", target);
    }
  }
};
</script>
<style lang="scss" scoped>
@import "../assets/styles/global";
.content {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 102;
    width: 80%;
    height: 100%;
    background: white;
    .content-wrapper {
        width: 100%;
        height: 100%;
        overflow: auto;
        .content-item {
            padding: px2rem(20) px2rem(15);
            border-bottom: px2rem(1) solid #f4f4f4;
            .text {
                font-size: px2rem(14);
                color: #333;
        }
      }
    }
    .empty {
      width: 100%;
      height: 100%;
      @include center;
      font-size: px2rem(16);
      color: #333;
    }
}
</style>
